Add MediaStreamSource frame rate calculation to the tracker.

content/browser/media/webrtc_internals.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/media/webrtc_internals.h"
 
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/media/webrtc_internals_ui_observer.h"
 #include "content/browser/web_contents/web_contents_view.h"
@@ skipping 187 matching lines @@
     dict->SetString("audio", audio_constraints);
   if (video)
     dict->SetString("video", video_constraints);
 
   get_user_media_requests_.Append(dict);
 
   if (observers_.might_have_observers())
     SendUpdate("addGetUserMedia", dict);
 }
 
+void WebRTCInternals::OnAddVideoStats(base::ProcessId pid,
+                                      const std::string& video_id,
+                                      float input_frame_rate,
+                                      int number_of_dropped_frames) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  base::DictionaryValue* dict = new base::DictionaryValue();
+  dict->SetInteger("pid", static_cast<int>(pid));
+  dict->SetString("video_id", video_id);
+  dict->SetDouble("input_frame_rate", input_frame_rate);
+  dict->SetInteger("number_of_dropped_frames", number_of_dropped_frames);
+
+  if (observers_.might_have_observers())
+    SendUpdate("addVideoStats", dict);
+}
+
 void WebRTCInternals::AddObserver(WebRTCInternalsUIObserver *observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   observers_.AddObserver(observer);
 }
 
 void WebRTCInternals::RemoveObserver(WebRTCInternalsUIObserver *observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   observers_.RemoveObserver(observer);
 
   // Disables the AEC recording if it is enabled and the last webrtc-internals
@@ skipping 160 matching lines @@
   } else if (!peer_connection_data_.empty() && !power_save_blocker_) {
     DVLOG(1) << ("Preventing the application from being suspended while one or "
                  "more PeerConnections are active.");
     power_save_blocker_ = content::PowerSaveBlocker::Create(
         content::PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension,
         "WebRTC has active PeerConnections.").Pass();
   }
 }
 
 }  // namespace content